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公开(公告)号：US3319310A
公开(公告)日：1967-05-16
申请号：US36886664
申请日：1964-05-20
Applicant: RCA CORP
Inventor： WOEHLING JOHN G
IPC: H01J19/00
CPC classification number: H01J19/00 , H01J2893/0024
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